TDK-Micronas GmbH HAL® 581 series digital magnetic switch, part number HAL581-SF-E. This Hall-effect sensor is a bipolar latching switch designed for high-performance applications. The device features integrated circuitry for magnetic field detection and output switching, providing a digital output signal. Packaged in a SOT89B surface-mount package, it is supplied on tape and reel for automated assembly. The HAL581-SF-E is suitable for demanding automotive and industrial control systems requiring robust and reliable position sensing. Its bipolar switching characteristics ensure stable operation in the presence of varying magnetic field polarities.